text: """The tests for the Binary sensor component."""
  from unittest import mock
  
  from homeassistant.components import binary_sensor
  from homeassistant.const import STATE_OFF, STATE_ON
  
  
  def test_state():
      """Test binary sensor state."""
      sensor = binary_sensor.BinarySensorEntity()
      assert STATE_OFF == sensor.state
      with mock.patch(
          "homeassistant.components.binary_sensor.BinarySensorEntity.is_on",
          new=False,
      ):
          assert STATE_OFF == binary_sensor.BinarySensorEntity().state
      with mock.patch(
          "homeassistant.components.binary_sensor.BinarySensorEntity.is_on",
          new=True,
      ):
          assert STATE_ON == binary_sensor.BinarySensorEntity().state
  
  
  def test_deprecated_base_class(caplog):
      """Test deprecated base class."""
  
      class CustomBinarySensor(binary_sensor.BinarySensorDevice):
          pass
  
      CustomBinarySensor()
      assert "BinarySensorDevice is deprecated, modify CustomBinarySensor" in caplog.text
  